JPH0480767U - - Google Patents
Info
- Publication number
- JPH0480767U JPH0480767U JP12185090U JP12185090U JPH0480767U JP H0480767 U JPH0480767 U JP H0480767U JP 12185090 U JP12185090 U JP 12185090U JP 12185090 U JP12185090 U JP 12185090U JP H0480767 U JPH0480767 U JP H0480767U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- hydraulic oil
- port
- valve
- flow control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Description
第１図は本考案による流量制御弁の一実施例の
概略構成を示す縦断面図、第２図は同じくポンプ
回転数と流量との関係を示す線図、第３図及び第
４図はそれぞれ従来の流量制御弁の一例の概略構
成を示す縦断面図、第５図及び第６図はそれぞれ
第３図及び第４図に示す流量制御弁におけるポン
プ回転数と流量との関係を示す線図である。
２……スプール室、３……給入ポート、４……
ドレンポート、６……スプール弁、６ｂ……テー
パ面（円錐体状部）、１０……高圧室。
Fig. 1 is a vertical cross-sectional view showing a schematic configuration of an embodiment of a flow control valve according to the present invention, Fig. 2 is a diagram showing the relationship between pump rotation speed and flow rate, and Figs. 3 and 4 are respectively A vertical cross-sectional view showing a schematic configuration of an example of a conventional flow control valve, and FIGS. 5 and 6 are diagrams showing the relationship between pump rotation speed and flow rate in the flow control valve shown in FIGS. 3 and 4, respectively. It is. 2... Spool room, 3... Supply port, 4...
Drain port, 6... Spool valve, 6b... Tapered surface (conical part), 10... High pressure chamber.
Claims (1)
回路への作動油の吐出ポートと、余剰の作動油を
還流させるドレンポートとを備えたスプール室内
にスプール弁を配設し、該スプール弁により前記
ドレンポートからのドレン流量を増減させ、吐出
流量を制御するようにした流量制御弁において、
前記スプール弁の端面を前記スプール室の高圧室
側に向つてほぼ円錐体状に形成したことを特徴と
する流量制御弁。 A spool valve is disposed in a spool chamber that includes an inflow port for hydraulic oil, a discharge port for hydraulic oil to the hydraulic circuit of the actuator, and a drain port for recirculating excess hydraulic oil, and the spool valve is used to connect the drain port to the spool chamber. In a flow control valve that controls the discharge flow rate by increasing or decreasing the drain flow rate from the
A flow control valve characterized in that the end face of the spool valve is formed into a substantially conical shape toward the high pressure chamber side of the spool chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12185090U JPH0480767U (en) | 1990-11-22 | 1990-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12185090U JPH0480767U (en) | 1990-11-22 | 1990-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480767U true JPH0480767U (en) | 1992-07-14 |
Family
ID=31869678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12185090U Pending JPH0480767U (en) | 1990-11-22 | 1990-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480767U (en) |
-
1990
- 1990-11-22 JP JP12185090U patent/JPH0480767U/ja active Pending
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